Just my two cents. I finished 10 rounds of chemo about 18 months ago. For me I would say it worked, my psa was 932 before and around .4 when I finished treatment. I had alot of pain in my leg before starting and that went away. My believe is it stops it from spreading which scans confirm. I still get treatment, Lupron and Xgeva quarterly, daily take Abiraterone and Prednisone. I'm 27 months into my journey, I'm 70 now. My "normal" changed when I was first diagnosed. I believe there is a reason people on here say you have to fight on, if we don't we are in a bad spot. I've accepted the diagnosis, accepting the new normal is a bit harder. For me, everything has slowed down, I just try to keep moving ahead. At the beginning my Dr. said I have stage 4 metastasized to the bones and is aggressive. He never gave me a time line, thank goodness. For me, it's all about keeping my head in the game, the body stays the same but if I convince myself I'm having a good day, its awesome. That chair may feel great but I need to do something, anything, and then I feel better. Forget that "end" time, just try to enjoy as best you can. I wish you the best on your journey. Best to all.